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U.S. Geological Survey Open-File Report 2011–1004

Sea-Floor Geology and Character of Eastern Rhode Island Sound West of Gay Head, Massachusetts

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Title | List of Figures | Conversion Factors | Abstract | Introduction | Setting | Methods | Bathymetry | Sediment Distribution | Bottom Photography | GIS Data Catalog | Summary | Acknowledgments | References | Contacts

Figure 27. An image of cross-sectional views of sand waves in the study area.

Figure 27. Cross-sectional views of megaripples from the digital terrain model produced from bathymetric data collected during National Oceanic and Atmospheric Administration survey H11922. Bedform asymmetry and slip-face orientation (Reineck and Singh, 1980) indicates net northwestward and northeastward sediment transport in profiles A and B, respectively. The megaripples in profile C are predominantly symmetrical. Locations of profiles are shown in figure 21.

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